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534017381 = 2323218147
BaseRepresentation
bin11111110101000…
…111010101100101
31101012211220010112
4133311013111211
52043202024011
6124553502405
716143033662
oct3765072545
91335756115
10534017381
11254491187
1212aa11a05
1386835821
1450ccca69
1531d3758b
hex1fd47565

534017381 has 4 divisors (see below), whose sum is σ = 557235552. Its totient is φ = 510799212.

The previous prime is 534017371. The next prime is 534017383. The reversal of 534017381 is 183710435.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 183710435 = 536742087.

It is a cyclic number.

It is not a de Polignac number, because 534017381 - 26 = 534017317 is a prime.

It is a super-2 number, since 2×5340173812 = 570349126420198322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (534017383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11609051 + ... + 11609096.

It is an arithmetic number, because the mean of its divisors is an integer number (139308888).

Almost surely, 2534017381 is an apocalyptic number.

It is an amenable number.

534017381 is a deficient number, since it is larger than the sum of its proper divisors (23218171).

534017381 is a wasteful number, since it uses less digits than its factorization.

534017381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23218170.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 534017381 is about 23108.8160882378. The cubic root of 534017381 is about 811.3068276269.

The spelling of 534017381 in words is "five hundred thirty-four million, seventeen thousand, three hundred eighty-one".

Divisors: 1 23 23218147 534017381